Solar energy is inexhaustible, clean, pollution-free and renewable green energy. The use of solar power generation has unparalleled cleanliness, high safety, relative extensiveness and adequacy of energy, long life and maintenance-free advantages that other conventional energy does not have. Photovoltaic energy is considered to be the 21st century The most important new energy. Solar street lights do not need to lay cables, AC power supply, and no electricity bills. Using DC power supply and control, it has the advantages of good stability, long life, high luminous efficiency, easy installation and maintenance, high safety performance, energy saving and environmental protection, economical and practical. It can be widely used in urban main and secondary arterial roads, communities, factories, tourist attractions, parking lots and other places. Product parts The pole structure is composed of steel poles and brackets, the surface is sprayed with plastic, and the battery board connection uses special anti-theft stainless steel screws.
The working principle of solar street lights is generally that solar street lights during the day are under the control of an intelligent controller. The solar panels absorb solar light and convert it into electrical energy under the control of the intelligent controller during the day. The light source is powered to realize the lighting function. The DC controller can ensure that the battery pack is not damaged due to overcharging or overdischarging. It also has functions such as light control, time control, temperature compensation, lightning protection, and reverse polarity protection.
The solar street light system can guarantee normal work for more than 15 days in rainy weather! Its system is composed of LED light source (including driver), solar panel, battery (including battery incubator), solar street light controller, street light pole (including base) and auxiliary materials and wires.
Solar cell components generally use monocrystalline silicon or polycrystalline silicon solar cell components, and LED lamp holders generally use high-power LED light sources. The controller is generally placed in the light pole, with light control, time control, overcharge and overdischarge protection and reverse connection protection. More advanced controllers have the function of adjusting the lighting time in four seasons, half power function, intelligent charge and discharge function, etc. Batteries are generally placed underground or there will be special battery incubators, which can be valve-regulated lead-acid batteries, gel batteries, iron-aluminum batteries, or lithium batteries. The solar lamps work fully automatically without trenching and wiring, but the poles need to be installed on the embedded parts (concrete base).
At present, one of the most important links restricting the application of solar power generation is the price. The one-time input cost of the entire street lamp is much higher than that of the municipal circuit lamp, which has caused the main bottleneck in the application of solar street lamps. The service life of the battery should also be considered in the application of the entire street lamp system. The general battery is guaranteed for three or five years, but the general battery will be dissatisfied after one year or even six months, and some actual charging rates may decrease. To about 50%, this will definitely affect the normal lighting at night during continuous rainy days, so it is particularly important to choose a better battery.
Some engineering companies often choose LED lights as the lighting of solar street lights, but the quality of LED lights is uneven. LEDs with severe light decay may attenuate 50% of the illuminance in half a year. So be sure to choose LED lights with slower light decay, or use induction lamps, low-pressure sodium lamps, etc. The choice of controller is often a problem that is ignored by engineering companies, and the quality of the controller is not uniform. In places far away from the city, you should also pay attention to anti-theft work. Many engineering companies failed to implement effective anti-theft due to negligence in construction, resulting in the theft of batteries, battery panels and other components, which not only affected normal lighting, but also caused unnecessary property losses. . Most of the stolen batteries in engineering cases are batteries. Buried in the ground and poured with cement is an effective anti-theft measure. It is best to weld and reinforce the battery box on the light pole.
The controller is waterproof. The controller is usually installed in a lampshade or battery box, and water is generally not allowed to enter. However, in actual engineering cases, the connection wires of the controller terminals are often short-circuited due to rain water flowing into the controller along the connection wires. Therefore, during construction, you should be careful to bend the internal connection wire into a "U" shape and fix it, and the external connection wire can also be fixed to a "U" shape, so that rainwater cannot enter and cause the controller to short-circuit. In addition, the internal and external wires can also be used. Apply waterproof glue to the interface.
In many practical applications of solar street lights, solar street lights in many places cannot meet the normal lighting needs, especially in rainy days. In addition to the use of poor quality related components, another main reason is to blindly reduce the cost of components. Design and configuration according to requirements, reduce the use standards of battery panels and batteries, so that street lights cannot provide lighting on cloudy and rainy days.
Zhongshan Langjin Lighting Appliance Co., Ltd. is a manufacturer specializing in outdoor LED lamps. It attaches great importance to product quality and has established a complete quality control system. It has passed the quality system certification and product safety certification such as CE, ROHS, FCC, and IP65. After years of accumulation, we have provided solar street lights for many lighting projects.
